1∶50000矿产地质图编制与数据库建设要求

Requirements of Map Compilation and Database Building of 1∶50000 Mineral Geological Maps

1∶50000固体矿产地质调查是保障国家能源资源安全的长期的基础性、公益性、战略性地质工作,是矿产勘查的重要基础和先导性工作,是国家地质调查与地球系统科学研究程度的重要指标,目的是摸清国家矿产资源家底、实现重大找矿突破或新发现、引导和拉动后续矿产勘查,在服务国家重大战略、社会发展和生态文明建设中发挥着重要的作用。2019年中国地质调查局正式印发《固体矿产地质调查技术要求(1∶50000)》(DD2019–02),创建了以成矿作用类型为主线、以成矿要素为对象、以预研究为基础、以矿产地质专项填图为核心、按成矿作用类型填(编)建造构造图的新方式和基于矿床模型综合地质信息预测方法的矿产资源潜力评价技术体系,建立了地质潜力、技术经济可行性和环境影响"三位一体"综合评价工作体系,为固体矿产地质调查及其成果表达指明方向,为支撑固体矿产勘查提供技术保障。其中1∶50000矿产地质图是固体矿产地质调查核心成果图件,在此结合技术要求简要阐述1∶50000矿产地质图编制与数据库建设要求。

1∶50000 solid mineral geological surveys are long-term basic,public-spirited,and strategic geological work that guarantee national energy and resource security.They serve as both an important foundation and forerunner of mineral exploration and an important index of national geological surveys and earth system science research.Their purpose is to ascertain national mineral reserves,achieve significant breakthroughs in prospecting or make new discoveries,and guide and drive subsequent mineral exploration.Meanwhile,they play an important role in serving major strategies,social development,and ecological civilization construction.In 2019,the China Geological Survey officially issued the Technical Requirement of 1∶50000 Solid Mineral Geological Survey(DD 2019-02),creating a new mineral geological survey method by mapping(compiling)suite-tectonic maps according to mineralization types and taking mineralization types as the thread,metallogenic factors as the objects,pre-research as the base,and mineral and geology-specific mapping as the core.Meanwhile,a mineral resources potential evaluation technical system and a"trinity"assessment system were also established.The former is based on the comprehensive geological information prediction of deposit models and the later integrates the assessment of geological potential,technical and economic feasibility,and environmental impact.All these guide solid mineral geological surveys and the expression of survey results and provide technical support for solid mineral exploration.Among them,the 1∶50000 mineral geological maps serve as the core result maps of solid mineral geological surveys.This paper focuses on a brief description of the requirements of map compilation and database building of 1∶50000 mineral geological maps based on the Technical Requirement of 1∶50000 Solid Mineral Geological Survey(DD 2019-02).